# b站:Python教程全套，入门到精通(Python全栈开发教程)
# by:杨教主
# QQ：273368189
# 兴趣方向：机器学习
# time: 2022/1/9 14:00

print('p' in 'python') #True
print('k' not in 'python') #True
lst=[10,20,'python','hello']
print(10 in lst)  #True
print(100 in lst) #False
print(10 not in lst) #False
print(100 not  in lst) #True

print('-------------------------------------')
for i in lst:
    print(i)